diff --git a/database/maildb.sql b/database/maildb.sql
index 7e868c29..d6fc596d 100644
--- a/database/maildb.sql
+++ b/database/maildb.sql
@@ -70,12 +70,12 @@ DROP TABLE IF EXISTS `t_account_data`;
 /*!40101 SET character_set_client = utf8 */;
 CREATE TABLE `t_account_data` (
   `idx` int(11) NOT NULL AUTO_INCREMENT COMMENT '自增id',
-  `accountid` varchar(60) CHARACTER SET utf8 NOT NULL COMMENT '账号id',
+  `account_id` varchar(60) CHARACTER SET utf8 NOT NULL COMMENT '账号id',
   `blobdata` mediumblob COMMENT '账号',
   `createtime` int(11) NOT NULL DEFAULT '0' COMMENT '创建时间',
   `modifytime` int(11) NOT NULL DEFAULT '0' COMMENT '修改时间',
   PRIMARY KEY (`idx`),
-  UNIQUE KEY `accountid` (`accountid`)
+  UNIQUE KEY `accountid` (`account_id`)
 ) ENGINE=InnoDB AUTO_INCREMENT=10000 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
 /*!40101 SET character_set_client = @saved_cs_client */;
 /*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;